Virtual fault injection test method based on power supply control
A power control and fault injection technology, applied in electrical testing/monitoring, comprehensive factory control, general control systems, etc., can solve problems such as difficult to switch controller fault signals at any time, and achieve the effect of improving test efficiency and verification coverage
Active Publication Date: 2021-09-03
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0006] In view of the above, the present invention aims to provide a virtual fault injection testing method based on power supply control, which solves the problem that it is difficult to flexibly switch the controller at any time in the existing test method to achieve full coverage of the fault signal
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[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0029] The present invention proposes an embodiment of a virtual fault injection testing method based on power supply control, specifically, as figure 1 As shown, the following steps may be included:
[0030] Step S1, load and run a pre-developed vehicle simulation model, the vehicle simulation model includes a power supply control model, and one or more of the following models: power related model, sensor model, actuator model, bus communication model.
[0031] Step S2, start the virtual controller of the target vehicle-moun...
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The invention discloses a virtual fault injection test method based on power supply control. The conception of the invention lies in that on the premise of not changing the topological structure of the vehicle-mounted network and a communication physical medium, real control and virtual control can be switched orderly at any time through a plurality of pre-constructed simulation model combinations; and under virtual fault injection, the safety protection strategy of each vehicle-mounted system is verified, so that possible design defects can be found in time. When the system runs to any working state, all signals sent by all controllers of the whole vehicle and various fault modes of the signals can be flexibly covered at any time, and compared with an existing fault injection mode, the system has the advantages that fault injection is achieved at any time instead of a specific working state; therefore, the vehicle test verification coverage degree is greatly improved, the test condition and the test working condition can be easily met, and the test efficiency is remarkably improved.
Description
technical field [0001] The technical field of vehicle testing of the present invention relates in particular to a virtual fault injection testing method based on power supply control. Background technique [0002] With the development of automobile intelligence, more and more on-board controllers are used in the car, and various controllers perform data interaction through the bus to form a network communication topology. In the development and verification of the on-board controller, each controller is connected to the network according to this topology and then the joint test and verification is carried out. During the joint verification process, it is necessary to realize the fault simulation of the signal sent by the controller. Usually, diagnostic services, electrical faults, etc. can be used. However, such methods cannot flexibly cover all signals and signal fault types at any time. Specifically, the existing technology can add a virtual simulation controller to the e...
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IPC IPC(8): G05B23/02
CPCG05B23/0213Y02P90/02
Inventor 崔书浩曹慧颖史雪纯张文明熊珊珊王玮温敏徐洪伟
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD